Recording device.



PATENTED MAR. 3, 1908.

E. s. COLE. RECORDING DEVICE.

APPLIGATION FILED ]?EB.17, 1904.

EDWARDS. COLE, OF UPPER MONTGLELIR NEW .FERSW'V' RECORDING- DEVIGE.

Specification of Letters Patent.

Application filed February 17. 1904: Serial No. US$137:v

To all whom it mcyconcern.

Be it known tlmtl, EDWARD S. COLE, e citizen olthe United States, residing at Upper Montclair, in the county of Essex and State of Net Jersey, have invented t certain new and useful Improvement in. llecordinc Devices, of which the following is e full, clear, concise, and exact description, reference being hard; to the accompanying drawings, forming zi part of this specification.

My invention relates to devices for record ing the velocity and static pressure of lowing streams.

The principal object of the invention is to provide a simplefpractical and inex device of the class specified, and to p Early avoid friction therein and hl'lGlf cure accuracy in the recording operati in the accompanying drawings, Fig it is a view partly diagrammatic and partly 'r vertical section, of a recording device ens liodying' my invention; Figs. 2 and 8 ere views of a portion ,of the device, in different modified forms.

in Fig. 1, A- represents at pipe or main in l which flows the stremn whose velocity and pressure are to be recorded. This can be e WMGI' main or water pipe or other pipe of various kinds. A pair of tubes 1 nd 2 are BXUZIMlGl'i iiIOIII the pipe A. Both szihesextend down into the pipe. The tuh 1 has a, bent end 3 which faces the flowing stream, and the tube 2 has ahent end 4 which is turned in the opposite direction. These 'tlllliS l and 2 extend to a structure B made in the form of eU-tube, and to such end coniprisiug vertical tubular sections 5 and 6 con-- necter'l with one another by a .l'iorizontelly eltending section 7. This U-tube B is vided at its lower end'with a heavy liquid 8, the upper portion being filled with water connnui'iiceting-with the main A. The section 6 is slotted at one side, and to this side is secured a strip 9 of insuletin material which closes the slot and is provided with a series of contacts 10, 10. A float 11 is confined in the section 6, and is provided with wheels or rollers 12, 12 and 13, 13 at its lower and upper ends respectively. The float 11 is so constructed and balanced. that it will rise and fall in accordance with the variations in the height of'the heavy liquid 8 which can lie mercury or other liquid.

G is a rotary drum on which is arranged. a sheet of )eper on which the record is to be kept. l

T 'llS drum is essociated with a clock 1 ranged to wr ozmse one of the wl'ice niechnnis-in 1% by which it turned. A serie pencils 15, n in the end i f it a so? iirwers in, so 1 the penc are :nrenged in position. in lengthwi t oi" the drum. The ii? are parts or extensions of are"; pivoted at 18, i8. rielow sir 17 are elcctrio-magnets if-l, 1? which are c nected wi l1 wires or cmiductors 2G, e tending to -the coiitecis 10 on the lee V :1 the it e E. The magnets 19, if connected. with e, comlrictor 2 w eh to hetterv the leg 6. v by n tube sure or hand 24k c i yang a pe. .cn viillCM- the peper on (l The upper gether than the :t wer ones and the it hetwcen them increases from top i The eretion of the tiGVlfl l l 5 in t liquid liquid in the t leg This d accordance with the is h As the liquid varies, the lowered accordingly.

tion with ver. 7 one. and thereby c niplctc dii'lerent oi the these magnets ere one red their iii-inn.

16, 16 to or ilJG in 4:1 liiltGu c the drum Ll which in its rotation per. its the liner re-o are energize:

upper end as the float de. ce

lower megnets are encrginci'l and by the lower pencils. l.lins merits ere niede in accordance with the vnrin he in the level ice;

of the heavy liquid in. the {i and accordance with variations in the ve the streein flowing in the pipe A ing the distance between the p n pensate for the Vall flllg he nest rises for equal increments its the flow increases from c ice" be integrated with a planimeter.

- record is the velocity and static pressures of the liquid flowing in the main or conduit.

' In Fig. 2 I have shown the cylinder C with a typewriter ribbon 27 interposed between it and the pencils 15, 15. In such case the latter of course'can be made merely metal or similar oints without any lead such as lead pencils ave.

In Fig. 3 I have shown the cylinder and a en 28 which is one of a row of pens employed instead of the pencils 15, 1'5 for ma ing a record on the record sheet. These pens can be of any suitable or desired construction adapted to operate in the arrangement shown.

Chan es and modifications may be made in the evice hercinset forth, without departing from the spirit of the invention. 30

What I-claim-is:- V 1. The combination with a main or conduit for the flowing stream, of tubes 1 and 2 connected therewith, a U-tube B containing a heavy liquid, afloat in one of the legs of said U-tube, electrical contacts along the 'side of said leg, conductors extending from said contacts, magnets to which said conductors are connected, pencils carried by the armatures of. said magnets, a rotary drum pgessu're in the main A, and thusa associated withsaid pencils, and means for rotating said drnnu substantially as described. I

2. In adeviceot the class specified, the combination'of a, series of recording devices separated from one another by varying distances which are computed to indicate desired units of velocity, and means controlled by a flowing stream for actuating said deviees, substantially as described.

3. In-adevice of the class specified, a rotary drum,"a. series of pencils arranged lengthwise of the axle of said drum and se arated from one another b increasing is- .tances which are compute to indicate like units of velocity, a series of electromagnets for operating said pencils, and means controlled by a flowing stream for energizing I said magnets.

4. An apparatus of the class specified, compris ng a conduit for the flowing stream, tubes 1 and 2 connected therewith, a U-tube containing a float, a series of electromagnetic 7 devices provided with connections by which they are operated by said float, a series of pencils operated by said electromagnetic devices, a rotary drum associated with said pencils, anda pressure gage connected with the tube 2 and having an arm 24 provided tion with the rotary drum, substantially as described.

In witness whereof, I hereunto subscribe my name this 8th day of February, A. D.,

EDW. S. COLE. Witnesses:

CHAS. S. HAYES, BURT B. I'IODGMAN.

- with a pencil 25' adapted for use in c'onnee- 

